Condensed Consolidated Statements of Operations (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Cost of uranium sales:
Operating expenses	$ 568,033	$ 776,764	$ 1,886,157	$ 1,920,601
Mineral property expenses	371,984	981,657	1,796,313	3,215,697
Accretion/amortization of asset retirement obligations	97,435	22,673	292,305	69,416
Depreciation and depletion	76,089	91,319	225,907	318,637
Impairment of uranium properties	3,701	296,628	683,356	1,048,400
Total cost of uranium sales	1,117,242	2,169,041	4,884,038	6,572,751
Loss from operations before corporate expenses	(1,117,242)	(2,169,041)	(4,884,038)	(6,572,751)
Corporate expenses:
General and administrative	2,174,862	2,994,663	6,749,980	8,191,352
Depreciation	32,631	40,911	115,773	104,751
Total corporate expenses	2,207,493	3,035,574	6,865,753	8,296,103
Loss from operations	(3,324,735)	(5,204,615)	(11,749,791)	(14,868,854)
Other income and expense:
Interest expense	(3,859)	(6,055)	(253,485)	(12,723)
Interest and other income, net	55,703	20,501	60,238	247,678
Net loss	$ (3,272,891)	$ (5,190,169)	$ (11,943,038)	$ (14,633,899)
Basic and diluted net loss per common share (in dollars per share)	$ (0.16)	$ (0.42)	$ (0.63)	$ (1.34)
Average weighted shares outstanding (in shares)	19,820,258	12,413,476	18,995,957	10,953,407